div.joke{
    margin-top: 10px;
    margin-right: 10px;
    margin-left: 10px;
    border-width: 1px;
    border-color: blue;
    border-style: solid;
    padding-left: 5px;
    padding-right: 5px;
}

div.yetbutton{
    margin-top: 10px;
    margin-right: auto;
    margin-left: 10px;   
    background-color: blue;
    font-size: 16pt;
    color: white;
    width: 150px;
    height: 30px;
    font-weight: bold;
    text-align: center;
    padding-top: 3pt;
}